Eyeleting-machine.



B. s. ENSIGN EYELETING MACHINE.

APPLIUA'IION FILED DECLIB. 1913.

Patented Dec. 1

UNITED STATES PATENT OFFICE.

EMORY S. ENSIG-N, F BRIGHTON, MASSACHUSETTS.

EYnLETme-MAcnInE.

Specification. of Letters Patent.

PatentedDec.1,1914l.

Application filed December 18, 1913. Serial No. 807,543. I

' uniting several superposed sheets of paper,

their order.

or the like, so'that they may be readily examined without fear ofdisplacement of It may be considered as. an improvement on eyeletingmachines, in that an angular opening is punched through the paperinstead of a round one, and consequently, one fastening is sufiicienttoprevent the sheets from swiveling on the eyelet.

- Another valuable improvement consists in the fact that a simple plateof thin metal is presented to the mechanism instead of a preparedeyelet, this being pierced similarly to the sheets of paper and at thesame operation. The punchings from this perforation in the metal are notsevered from the plate but are carried through theperforation in thesheets of paper, in the form of projecting angular lugs of predeterminedshape which are clenched on the opposite side of the .paper. Thisperforation is preferably square in outline and is so illustrated in thedrawings which accompany and form part of this specification; but itwill be understoodthat the main function of the angular shape is toprevent the swiveling noted above.

Another feature of my invention is the means for severing these bits ofmetal from a continuous strip that is fed into position for perforation.

Other minor features will appear in the description which follows:

In the drawings,.Figure l is a side elevation of my device with certainparts broken away. Fig. 2 is a section on line 22 of Fig. 1, withthe'punch shown in elevation. Fig. 3 is a plan section on line 3-3 ofFig. 1. Fig. 4*is a partial section on line 2-2 of Fig. 1, viewed fromtheopposite direction to Fig. 2. Fig. 5 1s a similar partial sectionshowing the operation completed. Figs. 6 and 7 show, respectively, frontand rear views of the clenched sheets. 1

The frame 1 is made in two parts fastened together at 2. One of theseparts incloses the punch or male die 3 nd the other the female die 4.The square outline of the dies is shown by dotted lines in Fig. 3, wherethe female die alone is represented. The punch 3 is similar in outlineand is adapted to completely sever the paper punchings as 1t enters thefemale (lie 4, a clearance being provided in the latter for the escapeof these severed bits. Die 4 is supported on a threaded plug 5 whichpermits slight adustment, but which is mainly designed to form asubstantial abutment to resist the thrust of the clenching blow.

In F ig. 1, the paper P is shown in position for clenching and isyieldingly supported on a pair of flat springs 6, 6, the free 1 ends ofwhich are adapted to recedeinto openings 7 in the frame, when theclenching pressure is applied. The shape of these springs is such as topresent-no shoulder to oppose the proper entrance of the paper P, norits withdrawal after clenching.

The punch 3 is firmly mounted in a reciprocating stem 8 which terminatesin a head or handle 9, said stem being surrounded by a spiral spring 10which tends to maintain stem 8, which is square in outline to preventturning, in raised position. The guide opening for stem 8, in frame 1,is enlarged at one side to accommodate a cam-block 11, secured to stem 8by screws 12, this cam-block having two functions to perform, as will belater described.

A cover plate 13, secured to frame 1 by screws 14,has a square openingwhich closely and slidably fits stem 8 on all sides and forms a stop forengaging cam-block 11 to limit the upward movement of punch 3.

The strip of metal, M, is here shown as wound upon a reel 15. from whichit is fed between two guide rolls 16, 16, one of which is slidablymounted .in grooves 17 in the bearings 18, secured at 19 to frame 1,tension being maintained by spiral springs 20, Figs. 1 and 3. From rolls16, the metal is introduced through an opening 21 in frame 1. and fed,by hand, against a shoulder 22, formed on each of a pair of slidableblocks 23, 23, said shoulder serving to register a prescribed amount ofmetal for each operation, beneath .the punch or plunger 3. Blocks 23 areslidably housed within a transverse opening 24 in frame 1 and arenormally held in contact with each other by spiral springs 25, 25. Toinsure thelr meeting directly below the punch 3, stoppins -26, 26, fixedin a plate 27 which covers the opening 24:, are provided, one for eachblock 23, these pins 26 co6perating.,with.

their respective grooves, 28 in the"bl'oc'ks 23 to secure the pgoperregister. An-opene ing 29 in plate 27, permits the passage there.

through of,the= sev ered.-metal plate M, as will "be later described."Blocks 23' are slightly chamfered at their meeting point,- as indicatedat 30,Fig. 2, for. a purpose which will ybe more fully explained later.

der-22, and then-Ya quick, sharp blow on handle 9 'performs' all'the'operations neces- In 0p'erat1on,',tlie sheets of paper, are insertedas's'hown' 'in' 1, an openin be-. -ing provided-1n 'thefr'a'me for thatpurpose,

the metal strip; fed against the shoulsary to produce the result shownin Fig; 6.

- These operations will now be described in detail- The' gpoint ofpunch. 3, which is pyramidal in shape, perforates the metal strip, thetipsof the tri-ang'ular punchings,

'nor' has the latter been severed from the strip. To complete thespreading of blocks 23, the cam-block 11,wedge-shaped as shown at 32 inFigs.,'2, 4, andl 5, engages the shoul ders 22 of the'partly spreadblocks 23 and completes this part of the .operation, where- .upon theshoulder o3l, coiiperating with a block 33, which underlies the edge ofopening 21 in frame 1 severs the portion of the" metal'strip that lieswithin the path of stem .8, This severed portion, threaded on pun'ch '3and held against'the shoulder 31, is carried into contact with the.paper, P, the projecting lugs m passing through with punch 3 and meetingthe abutment of the. female die 4, where they are carried under thepaper and clenched, as seenin Fig. 5, r

' Although I have illustrated the, metal strip as hand-fed, it willbe'understood that ll do not limit myself to this .meth'od, nor

to the other details of construction shown.

It will be noticed that thepunched openings through both. metal andpaper are the same in area, the latter being forcibly en larged bytheprojecting .lugs as they pass through the sheets. l

What I claim is 1. A frame, a square punch dal point niovably mounted insaid frame, means for presenting a'thin metallic plate within the rangeof operationsof said punch,

movable blocksmounted in said frame and adapted to support said platewhen so presented, means for yieldingly retaining said blocksbeneathsaid plate so that their meeting place shall register with thepath of pyramie motion .of :saidpoint, the meeting edges of said blocksbeing scarfed to'facilitate their separation by said punch and mechanismfor causingsaid punch to perforate said :iplate' and separate saidblocks, said punch and said blocks being adapted to coiiperate :informing the material punched. from .isaiid plate into four, tri-angular,projecting lugs which are integral with said plate and which surroundsaid l perforation in com- ,bination with ,means'for clenching saidlugs. 112. A clenching device comprising a frame, tan angular-punchm'ov'able in, said frame,

ineans for presenting- 'a thin metal plate in alinementfwith said"punch, a pair of mov-- "able blocks mounted infsaid frame and adapted tosupport-said, plate when so'pres'ented, a femalediefmounted' in saidframe and adapted to coiiperate jwith'said punch, 1

said frame being so ct'ed and arranged that aseries ofpaper, or' the likwithinthe range of opera a fsho'ulde'r formed upon yff be fpositionednfof said punch,-

I said" "punchfand 'means whereby-saidblgcks may be moved fro 'eneath'said plate;-; in combination wi echanism for operating said punch toform'said plate -into an angular eyelet ,andiclnch, the samethrough andupon said sheets hyafsingle operation' Acl'enching device comprising aframe, amangular punch with a pyramidalpoint movabl y'mounted in saidframe, a shoulder formed on said punch, means for presenting one 'end ofa thinmetallic strip within the.

range of operation of said punch, a pair of movable blocks mountedin-said frame and underlying said end when so presented, said blocksbeing adapted tocotiperate with said punch in forming ank-angular'opening through said end whereby the punchings shall assume 'the form ofdepending, an-

lar lu'gs surrounding said opening and integral with said metallicstrip, a female die mounted in said frame,said frame being soconstructed and arranged that a pluralit; of superpose like, may beplaced in alinement with said punch; in combination with mechanism forcausing the piercing of said end, the severingof same from the strip andthe clenching of said severed and'pierced end through and upon saidsheets.

4. A clenching device comprising a frame, 'apunch mounted in said frame,means for presenting a thin metallic plate in alinement with said punch,a laterally movable support for said plate, said frame beingso ofsuperposed sheets of paper, or the like,

li fposed sheets I sheets of paper, or the its may be positioned forperforation by said punch, a female die mounted in said frame and invertical alinement with said punch, a shoulder on said punch andmechanism for operating said punch to successively form an eyelet fromsaid late, thread said eyelet on the shank of said punch, move saidsupport laterally frcmbeneath said plate, perforate said sheets andclench said eyelet through and upon said sheets, all by a singleoperation. a

5. A frame, a punch mounted in said frame, a shoulder formed inconnection with said punch, a female die mounted in said frame, saidframe being so constructed and arranged that a pluralityof superposedsheets of paper, or the like, may be presented for perforation by saidpunch, means whereby a thin metallic plate may be presented in alinementwith said punch; in combination with mechanism for causing said punch toform an eyelet from said plate, to perforate said sheets and completelysever therefrom the punchings from such perforation, and means forclenching said eyelet through and upon said sheets.

6. A frame, an angular punch mounted in said frame, a shoulder formed inconnection with said punch, a female die mounted in said frame andadapted to cooperate with said punch, means for presenting a thinmetallic plate in alinement with said punch, said frame being soconstructed and arranged that a sheet or sheets of paper may bepresented for perforation by said punch and mechanism for causing saidpunch to successively form an eyelet from said plate, to perforate saidpaper and completely sever therefrom the punchings from such perforation and to clench said eyeletthrough and upon said paper.

7. A frame, a square male die mounted in said frame, a female diemounted in said frame, a shoulder on said male die, said frame being soconstructed and arranged that a sheet or sheets of paper may bepresented in alinement with said male die, said male die being adaptedto perforate saidpaper and completely sever therefrom the punchings fromsuch perforation and mechanism for causing said male die to perforatesaid paper and to cooperate with said shoulder and said female'die inpresenting to said perforation and clenching through and upon said papera square metallic.eyelet, all by a single operation.

8. A. fastening device comprising means for forming a metallic eyeletwhose opening is of such contour as to prevent the swiveling thereon ofthe material fastened, a

unch for perforating the material to be astened and adapted tocompletely sever the punchings from such material and means for settingsaid eyelet, comprising a shoulder and a female die adapted to cooperatewith said punch; in combination with mechanism for operating theforming, perforatin and setting means to form and set the eye et by asingle operation.

9. A clenching device comprising a frame, an angular punch with apyramidal point movably mounted in said frame, means for presenting athin metallic late within the range of operation of sai punch, alaterally movable support for said plate when so presented and mechanismfor causing said punch to perforate said plate and move said supportlaterally from beneath the same sald punch and said support beingadapted to cooperate in forming the material punched from said plateinto projecting, angular lugs which are integral with said plate andwhich surround said perforation; in combination with means for clenching'said lugs.

. EMORY S. ENSIGN.

, Witnesses:

C. A. WYATT, R. E. BLAZO.

